We were pleased to see you that you added multiboot support to QNX7.  Thank You! (We had adapted LOADIFS for QNX6.6 for 
multiboot).

With the QNX7 multiboot facility, how does one get access to the multiboot command line passed by the loader to the QNX 
kernel?

i.e. the QNX equivalent to Linux's /proc/cmdline

for QNX multiboot, that would be when looking at the incoming multiboot record:
  flag MULTIBOOT_INFO_CMDLINE is set and then the
  NUL-terminated string pointed to by multiboot_info_t->cmdline

cf. https://www.gnu.org/software/grub/manual/multiboot/multiboot.html

Do you expose this cmdline, or the preserved raw multiboot structure, to QNX user processes?